ArticleThe New phytologist2022
Isoprene enhances leaf cytokinin metabolism and induces early senescence.
Article in The New phytologist, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 35 citations in OpenAlex.
- Isoprene-Emitting Transgenic Tobacco Shapes Root Microbiome and Enhances Growth of Co-Cultivated Non-Emitting Plants.Plant, cell & environment · 2026Article
- Cryptic isoprene emission of soybeans.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Leaf isoprene and monoterpene emissions vary with fast-slow carbon economics strategies in central Amazon woody species.Frontiers in plant science · 2025Article
- The effect of constitutive root isoprene emission on root phenotype and physiology under control and salt stress conditions.Plant direct · 2024Article
- Deoxyxylulose 5-Phosphate Synthase Does Not Play a Major Role in Regulating the Methylerythritol 4-Phosphate Pathway in Poplar.International journal of molecular sciences · 2024Article
- Interactions between leaf phenological type and functional traits drive variation in isoprene emissions in central Amazon forest trees.Frontiers in plant science · 2024Article
- Characterization of promoter elements of isoprene-responsive genes and the ability of isoprene to bind START domain transcription factors.Plant direct · 2023Article
- Isoprene-Emitting Tobacco Plants Are Less Affected by Moderate Water Deficit under Future Climate Change Scenario and Show Adjustments of Stress-Related Proteins in Actual Climate.Plants (Basel, Switzerland) · 2023Article
- Improving crop yield potential: Underlying biological processes and future prospects.Food and energy security · 2023Review
- Isoprene Emission Influences the Proteomic Profile of Arabidopsis Plants under Well-Watered and Drought-Stress Conditions.International journal of molecular sciences · 2022Article
- Exposure to different light intensities affects emission of volatiles and accumulations of both pigments and phenolics in Azolla filiculoides.Physiologia plantarum · 2022Article
Corrections and comments
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Authors and funding
7 authors at 6 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Isoprene, a major biogenic volatile hydrocarbon of climate-relevance, indisputably mitigates abiotic stresses in emitting plants. However functional relevance of constitutive isoprene emission in unstressed plants remains contested. Isoprene and cytokinins (CKs) are synthesized from a common substrate and pathway in chloroplasts. It was postulated that isoprene emission may affect CK-metabolism. Using transgenic isoprene-emitting (IE) Arabidopsis and isoprene nonemitting (NE) RNA-interference grey poplars (paired with respective NE and IE genotypes), the life of individual IE and NE leaves from emergence to abscission was followed under stress-free conditions. We monitored plant growth rate, aboveground developmental phenotype, modelled leaf photosynthetic energy status, quantified the abundance of leaf CKs, analysed Arabidopsis and poplar leaf transcriptomes by RNA-sequencing in presence and absence of isoprene during leaf senescence. Isoprene emission by unstressed leaves enhanced the abundance of CKs (isopentenyl adenine and its precursor) by > 200%, significantly upregulated genes coding for CK-synthesis, CK-signalling and CK-degradation, hastened plant development, increased chloroplast metabolic rate, altered photosynthetic energy status, induced early leaf senescence in both Arabidopsis and poplar. IE leaves senesced sooner even in decapitated poplars where source-sink relationships and hormone homeostasis were perturbed. Constitutive isoprene emission significantly accelerates CK-led leaf and organismal development and induces early senescence independent of growth constraints. Isoprene emission provides an early-riser evolutionary advantage and shortens lifecycle duration to assist rapid diversification in unstressed emitters.
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